Quality assurance!

For building certification, planning execution is checked carefully and comprehensively. Other documentation relating to the construction such as the airtightness test complete the quality assurance process. A certificate is only issued if the exactly defined criteria have been met without exception.

Our Services

Building Certification


Consulting Services


Advantages for the Owner

  • Certainty that the agreed-upon energy standard will actually be achieved
  • Increase in property value through independent quality assessment
  • Certified Passive House verification using the Passive House Planning Package (PHPP) can also be submitted for various subsidy programmes.

Advantages for the Designer

  • Prevention of errors due to thorough external checking of planning prior to the start of construction
  • Recognition as a Certified Passive House Designer is possible by submitting a certified building